US4714355A - Compensating device for rolling stands with rolls supported at only one end - Google Patents

Compensating device for rolling stands with rolls supported at only one end Download PDF

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Publication number
US4714355A
US4714355A US06/838,792 US83879286A US4714355A US 4714355 A US4714355 A US 4714355A US 83879286 A US83879286 A US 83879286A US 4714355 A US4714355 A US 4714355A
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US
United States
Prior art keywords
springs
bearing
upper bearing
bearings
shaft
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Expired - Lifetime
Application number
US06/838,792
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English (en)
Inventor
Alfredo Poloni
Fausto Drigani
Roberto Canzutti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Danieli and C Officine Meccaniche SpA
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Danieli and C Officine Meccaniche SpA
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Application filed by Danieli and C Officine Meccaniche SpA filed Critical Danieli and C Officine Meccaniche SpA
Assigned to DANIELI & C. OFFICINE MECCANICHE SPA reassignment DANIELI & C. OFFICINE MECCANICHE SPA ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CANZUTTI, ROBERTO, DRIGANI, FAUSTO, POLONI, ALFREDO
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/07—Adaptation of roll neck bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/005—Cantilevered roll stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
    • B21B31/26—Adjusting eccentrically-mounted roll bearings

Definitions

  • This invention concerns a compensating device for rolling stands with rolls supported at only one end.
  • the invention concerns a device to compensate the load applied to the bearing brasses at the upper end of rolling rolls supported at only one end on rolling stands.
  • Such bearings are slightly rounded on their outer surface cooperating with the housing of the stand.
  • the upper eccentric bearing and the lower eccentric bearing of each rolling roll shaft constitute one whole together or are united by a rigid half-sleeve element. This entails less possibility of deformation of the upper bearing or rather less possibility of movement of the bearing in relation to the housing of the stand when rolling force is applied to the rolling roll.
  • the invention provides for modification of the constraint between the upper and lower eccentric bearings, the fixture being effected by means of pre-loaded springs.
  • springs permit the rotation of the upper bearing to follow the deformation of the shafts of the rolling rolls.
  • such springs are positioned below the head of a screw that connects the upper eccentric bearing to a rigid half-sleeve element that unites the upper bearing to the lower bearing.
  • connection screws a series of holes to lodge such connection screws is provided on the circumference of the upper eccentric bearing.
  • the screws cooperate with springs, preferably cup springs or Belleville springs, lodged in the upper portion of such holes.
  • the rotation of the upper eccentric bearing under load is greater than it would be in the event of a rigid fixture.
  • the upper bearing therefore, adapts itself to the deformation of the shaft of the roll, as said earlier, to a greater extent than occurs in the known art.
  • the springs can be pre-loaded in such a way as to obtain the required compensation, thus reducing the maximum pressure acting on the bearing brass under load and therefore obviating occurrences of seizing or eccessive wear.
  • the invention is therefore embodied with a compensating device able to compensate the load acting on upper bearings of shafts of rolls supported at only one end on rolling stands, such rolls comprising shafts having at least two bearings, an upper bearing and a lower bearing, the device being characterized in that it comprises springs able to provide a resiliently yielding constraint between such bearings.
  • FIG. 1 shows a preferred embodiment of the invention applied to a roll of a rolling stand
  • FIG. 2 shows a rolling stand with rolls supported at only one end so as to provide a better general picture of the invention
  • FIGS. 3a and 3b show the behavior of the embodiment of FIG. 1, both without load and under load;
  • FIGS. 4a and 4b show a variant with springs introduced into the bearing from below;
  • FIG. 5 gives a detail of FIG. 1;
  • FIG. 6 gives a plan view of a section of the bearing of FIG. 1.
  • a rolling roll 10 comprises a shaft 11 supported in this example by a housing 12 of a rolling stand by means of an upper bearing 13 and lower bearing 14, such bearings 13-14 being united by a substantially rigid half-sleeve element 15.
  • This embodiment has been employed in this case to enable motion to be taken by a toothed wheel 22 solidly fixed to the shaft, but in other known embodiments it is possible to arrange for the toothed wheel 22 to be supported at one end below the lower bearing 14, with the two bearings 14-13 forming one single whole, preferably with two separate bearing brasses, upper and lower, supporting the shaft 11.
  • An adjustment screw 16 can be seen and cooperates with the upper bearing 13 and serves to rotate the bearings 13-14 so as to adjust axially the distance between the rolls 10.
  • FIG. 2 gives a diagrammatic view of a stand 18 which bears the rolls 10 and to which the invention is applied. This view shows both the rolling rolls 10 with the respective bearings 13-14 and a housing 12 of the stand.
  • FIG. 2 The area to which the invention is applied is surrounded by a circle of dashes, FIG. 2 being provided merely to give a general picture of the area of application of the invention.
  • the upper bearing 13 is connected to the rigid half-sleeve element 15 by connecting screws 19, under the heads of which are lodged cup springs or Belleville springs 20.
  • FIG. 5 shows also the springs 20, cup springs or Belleville springs in this example, which form the resilient compensating element according to the invention.
  • FIG. 6 gives a view of a section of the upper bearing 13. Through holes 21 for passage of the various screws 19 and also a bearing brass 17 positioned in the upper bearing are evident.
  • FIGS. 3a and 3b illustrate the behavior of the embodiment of FIG. 1 when under load.
  • FIG. 3a gives a diagram of the embodiment of FIG. 1 in which the outer curvature or swelling of the upper bearing 13 has been exaggerated. It is possible to see that under normal conditions the upper bearing 13 thus shown in this diagram is rested at its lower end on the top of the rigid half-sleeve element 15 and is constrained against the same by the screws 19 and cup or Belleville springs 20.
  • cup or Belleville springs 20 can be suitably pre-loaded either with an equal pre-loading of all of them or with a pre-loading varying between the individual springs or groups of springs.
  • FIG. 3b shows, for indicational purposes only, how the upper eccentric bearing 13 adapts itself according to the invention to deformation of the shaft 11 of the rolling roll.
  • the shaft 11 takes up a deformation to which the upper bearing adapts itself, the bearing being constrained in a non-rigid manner to the half-sleeve element 15 by the springs 20.
  • FIGS. 4a and 4b show instead another variant in which the upper bearing 13 is connected resiliently to the half-sleeve element 15, the springs being positioned between the bearing and the half-sleeve element.
  • the pre-loading of the springs 20 can be adjusted in a known manner so as to provide the compensation conditions most suitable for the type of bearing brass and for the load applied.
  • resilient means 20 of any required type can be employed; it is possible to vary the number and positioning of the springs and the nature of the pre-loading and of the means which carry out such preloading. These and other variants are all possible without departing thereby from the scope of the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Support Of The Bearing (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Metal Rolling (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
US06/838,792 1985-03-12 1986-03-12 Compensating device for rolling stands with rolls supported at only one end Expired - Lifetime US4714355A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT83344/85A IT1187546B (it) 1985-03-12 1985-03-12 Dispositivo compensatore per gabbie con rulli a sbalzo
IT83344A/85 1985-03-12

Publications (1)

Publication Number Publication Date
US4714355A true US4714355A (en) 1987-12-22

Family

ID=11320451

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/838,792 Expired - Lifetime US4714355A (en) 1985-03-12 1986-03-12 Compensating device for rolling stands with rolls supported at only one end

Country Status (6)

Country Link
US (1) US4714355A (es)
EP (1) EP0197568B1 (es)
AT (1) ATE57113T1 (es)
DE (1) DE3674616D1 (es)
ES (1) ES8700981A1 (es)
IT (1) IT1187546B (es)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4859087A (en) * 1988-10-24 1989-08-22 Allied Gear And Machine Co., Inc. Rotary die lateral adjustment bearing block assembly
CN116984378A (zh) * 2023-08-25 2023-11-03 汉威广园(广州)机械设备有限公司 一种偏心套组件及具有其的轧机

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1234881B (it) 1988-02-25 1992-06-02 Danieli Off Mecc Gabbia con rulli a sbalzo ad assi angolati.
DE19628956A1 (de) * 1996-07-18 1998-01-22 Schloemann Siemag Ag Exzenter-Lagerhülse für Walzentragwellen
DE19650580A1 (de) * 1996-12-06 1998-06-10 Schloemann Siemag Ag Walzgerüst-Exzenterlagerhülsen für Walzentragwellen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2026349A (en) * 1931-11-30 1935-12-31 Red Jacket Mfg Co Self-lubricating pump
US3001839A (en) * 1958-06-02 1961-09-26 Horberg Grinding Ind Inc Bearing structure
FR1456709A (fr) * 1964-08-24 1966-07-08 Morgan Construction Co Laminoir
US3804562A (en) * 1971-10-14 1974-04-16 Atlas Copco Ab Rotary machine with rotor axial positioning means
US4529324A (en) * 1980-10-24 1985-07-16 Sperry Corporation Spindle bearing follower

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR342570A (fr) * 1903-08-24 1904-09-12 Julius Albert Elsner Procédé perfectionné pour l'enlèvement de la poussière des gardines, meubles, tapis et tissus de toute nature
GB190907334A (en) * 1909-03-26 1909-12-23 British Thomson Houston Co Ltd Improvements in and relating to Shaft Bearings.
US1995408A (en) * 1931-05-23 1935-03-26 Nomy Ab Bearing
US2103465A (en) * 1934-08-03 1937-12-28 Universal Hydraulic Corp Bearing
AT323530B (de) * 1972-07-06 1975-07-10 Voest Ag Lageranordnung für drehtrommeln grossen durchmessers, wie rohrmühlen, mischtrommeln u.dgl.
JPS58187616A (ja) * 1982-04-24 1983-11-01 Nippon Steel Corp メタル軸受

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2026349A (en) * 1931-11-30 1935-12-31 Red Jacket Mfg Co Self-lubricating pump
US3001839A (en) * 1958-06-02 1961-09-26 Horberg Grinding Ind Inc Bearing structure
FR1456709A (fr) * 1964-08-24 1966-07-08 Morgan Construction Co Laminoir
US3804562A (en) * 1971-10-14 1974-04-16 Atlas Copco Ab Rotary machine with rotor axial positioning means
US4529324A (en) * 1980-10-24 1985-07-16 Sperry Corporation Spindle bearing follower

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4859087A (en) * 1988-10-24 1989-08-22 Allied Gear And Machine Co., Inc. Rotary die lateral adjustment bearing block assembly
CN116984378A (zh) * 2023-08-25 2023-11-03 汉威广园(广州)机械设备有限公司 一种偏心套组件及具有其的轧机

Also Published As

Publication number Publication date
EP0197568A3 (en) 1987-05-13
EP0197568A2 (en) 1986-10-15
ES8700981A1 (es) 1986-12-01
ES552753A0 (es) 1986-12-01
EP0197568B1 (en) 1990-10-03
DE3674616D1 (de) 1990-11-08
ATE57113T1 (de) 1990-10-15
IT8583344A0 (it) 1985-03-12
IT1187546B (it) 1987-12-23

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